OpenBuilds Documentation

OpenBuilds BLOX supports external LED strings, matrixes and rings containing WS2812 based addressable LEDs

• Max Current: 2A
• Voltage: 5v (Same as Input voltage)
• LED Type: WS2812B
• LED Address: 2+ (0,1=Onboard)

Make sure to set $536=0-255 (WS2812B LED strip length) in grblHAL settings (CONTROL > Grbl Settings Tab > Scroll down to$536 WS2812B LED strip length > Set the value to 2+'number of LEDs on the attached strip/matrix/circle' and Save That is because BLOX has two onboard LEDs. So if you add a 24-LED strip, you should set $536 = 2+24 thus $536=26

To change the LED colors, use the M150 command: “M150 I0 [index 0-Length of LED strip] P255 [brightness 0-255] R255 [red 0-255] U255 [green 0-255] B255 [blue 0-255]

For example, setting the two onboard LEDs BLUE: M150 I0 P255 R0 U0 B255 \n M150 I1 P255 R0 U0 B255